Resident Population in Gaston County, NC was 237.24200 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Gaston County, NC reached a record high of 237.24200 in January of 2023 and a record low of 148.41500 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Gaston County, NC - last updated from the United States Federal Reserve on May of 2024.